20411204316564 has 12 divisors (see below), whose sum is σ = 47626143405344. Its totient is φ = 6803734772184.

The previous prime is 20411204316563. The next prime is 20411204316623. The reversal of 20411204316564 is 46561340211402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411204316563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850466846512 + ... + 850466846535.

Almost surely, 2^{20411204316564} is an apocalyptic number.

It is an amenable number.

20411204316564 is an abundant number, since it is smaller than the sum of its proper divisors (27214939088780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20411204316564 is a wasteful number, since it uses less digits than its factorization.

20411204316564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700933693054 (or 1700933693052 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

Adding to 20411204316564 its reverse (46561340211402), we get a palindrome (66972544527966).

The spelling of 20411204316564 in words is "twenty trillion, four hundred eleven billion, two hundred four million, three hundred sixteen thousand, five hundred sixty-four".